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9 CHECK ECM POWER SUPPLY CIRCUIT-II
1. Turn ignition switch “ON” and then “OFF”.
2. Check voltage between ECM terminals 31, 110, 112 and ground with CONSULT-II or tester.
SEC899C
Voltage:
After turning ignition switch “OFF”, battery voltage will exist for a few seconds, then drop approximately
0V.
OK or NG
OK © GO TO 15.
NG (Battery voltage
does not exist.)
© GO TO 10.
NG (Battery voltage
exists for more than a
few seconds.)
© GO TO 12.
10 CHECK ECM POWER SUPPLY CIRCUIT-III
1. Disconnect ECM relay.
SEC044D
2. Check voltage between ECM relay terminal 3 and ground with CONSULT-II or tester.
SEF295X
OK or NG
OK © GO TO 12.
NG © GO TO 11.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS FOR POWER SUPPLY
Main Power Supply and Ground Circuit (Cont’d)
EC-161
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